Portable shield



FIG. 1 is a perspective view of a portable shield showing our new design;

FIG. 2 is a front elevational view of the arrangement shown in FIG. 1;

FIG. 3 is a rear elevational view of the arrangement shown in FIG. 1;

FIG. 4 is a side elevational view of the arrangement shown in FIG. 1; an opposite side view generally being a mirror image;

FIG. 5 is a top plan view of the arrangement shown in FIG. 1; and,

FIG. 6 is a bottom plan view of the arrangement shown in FIG. 1. 

The ornamental design for a portable shield, as shown and described. 